Suction roll for a machine for producing and/or processing a paper, cardboard or tissue web

A roller for a machine for manufacturing or processing a fibrous web, the roller comprising:

• a movable roller sleeve and a positive-pressure or negative-pressure zone formed inside said roller sleeve and rotationally fixed relative to said roller sleeve;
• a sealing installation configured to seal said positive-pressure or negative-pressure zone relative to an environment, said sealing installation having at least one sealing strip disposed for movement in a radial direction relative to the roller radially inwardly and away therefrom;
• said sealing strip having a sealing face toward an inner side of said movable roller sleeve, said sealing face having at least one lubricant outlet opening formed therein;
• a supply line connected to said at least one lubricant opening for delivering lubricant to between the inner side of said movable roller sleeve and said sealing face, said supply line including a first part running within said sealing strip and a second part running outside said sealing strip but within the roller;
• said second part of said supply line that runs within the roller, on a length which is routed outside said sealing strip, includes a first line portion and a second line portion, said first line portion being longer than said second line portion and said second line portion more flexural than said first line portion;
• and
• said supply line including a fourth line portion connected to said sealing strip and a third line portion releasably connected to said fourth line portion, said supply line including a connection element configured for releasably interconnecting said third and fourth line portions.